The Rebbe encourages renewed strength in Torah and mitzvos, assuring that every person has the power to overcome the yetzer hara, as taught in Tanya. Rather than sighing over weakness, one should act—since one deed surpasses a thousand sighs—and merit Hashem’s abundant blessings.
https://www.torahrecordings.com/rebbe/igroskodesh/016/002/5834